#define _CRT_SECURE_NO_WARNINGS
#include<stdio.h>
int main()
{
    int w, h;
    float c, bmi;
    while (scanf("%d %d", &w, &h) != EOF)
    {
        c = h / 100.0;
        bmi = w / (c * c);
        if (bmi < 18.5)
            printf("Underweight\n");
        else if (bmi >= 18.5 && bmi <= 23.9)
            printf("Normal\n");
        else if (bmi > 23.9 && bmi <= 27.9)
            printf("Overweight\n");
        else if (bmi > 27.9)
            printf("Obese\n");
    }
    return 0;
}